The Checklist of
Pennsylvania Maps ends here, and from here on the map lists are not inclusive.

The
period from 1790 to 1830 saw the beginning and development of the
American map industry. The early maps were uncolored. Hand
coloring, done primarily by women on a production line basis
using stencils, started circa 1820. Commercial maps with printed
color began appearing circa 1850.

Around mid-century came the
classic
county wall map
which led directly to the classic county atlas
. From the 1860s to the end of the
century, the county atlas became a best selling item for
publishers. They would solicit subscriptions for an atlas and if
enough people signed up, go ahead and make one. A county wall map
and atlas was published for most Pennsylvania counties. A notable
history of 19th century map publishing is American Maps and
Mapmakers by W. W. Ristow.

The first atlases of the
state were published in the 1800's including the following:

State Book of
Pennsylvania Containing an Account of the Geography, History,
Government, Resources and Noted Citizens of the State; with a Map
of the State and of each County, by Thomas H. Burrowes;
Uriah Hunt & Son, Philadelphia 1846. This 314 page book was
intended as a school geography, however the 50 or so state and
county maps make it an atlas also.

The Geology of
Pennsylvania, 1858. This two volume work was published
privately by the Chief Geologist of the First Geological Survey
of Pennsylvania, Henry Rogers, because of a lack of state support.
The illustrations and maps were engraved by W. & A. K.
Johnston of Edinburgh, William Blackwood & Sons of Edinburgh
printed the quarto volumes, and they were sold in the United
States by Lippincott, a Philadelphia publisher. This work is not
strictly an atlas. It had only two regular maps, the rest were
geological section maps; but it was the most detailed description
yet of Pennsylvania topography.

Atlas of Pennsylvania
with Descriptions, by H. F. Walling and O. W. Gray,
published by Stedman, Brown & Lyon, Philadelphia 1872 (LeGear
L2995, L6140, P. 684-685 of Phillips). This is probably the best
known state atlas. See
The 1872 Atlas
to view the pages.

Atlas of the County of
Fayette and the State of Pennsylvania, from Actual Surveys &
Official Records, compiled & published by G. M. Hopkins,
Philadelphia 1872 (LeGear L3035). This county atlas is
representative of several to which Hopkins added a state map plus
a sheaf of 9 large scale regional maps covering the entire state;
so it can be called a state atlas also. Hopkins did this with
several other county atlases including Butler, Mercer, and
Montgomery counties. Usually county atlases included just a
single state map and single county map, and so were not 'state'
atlases.

Geological Atlas of
Counties - X, by J. P. Lesley, published by the Board of
Commissioners for the Second Geological Survey, Harrisburg 1885 (LeGear
L2996). This atlas included a state map and 61 county maps
showing the geology of the state. Images from this atlas can be
seen at Pennsylvania
Geology at Penn State.
The Survey published other atlases summarizing their work,
including County Geological Maps 1885, and The Grand
Atlas 1885 (LeGear L2997), and they published a large number
of detailed reports containing regional maps.

The maps are organized by
decades as shown by the links below. The century is assumed to
begin in 1800 and end in 1899. Similarly a decade begins at 1820,
say, and ends in 1829. At least one map is shown for each year.
A quick tour of 19th
century maps chronologically can be made in this slideshow
.